Good grief!!! “Sient Walking” has been a thing since time began. It’s only in the last few decades that… 1st was a blaring radio sitting on your shoulder, then came the earphones, earpods etc. Some people these days can’t walk (or run or exercise) without their music or inspirational speeker playing in their ears.
It’s amazing what you see and hear when you “Silent Walk” … a new name for walking.